Feeder for stamping-presses.



F. H. DAVIS.

FEEDER FOR STAMPING PRESSES. APPLIcAuoN min FEB. e, :915.

1,210,278. Patented Dec. 26, 1916.

2 SHEETS-SHEET l.

F. H. DAVIS.

FEEDER FR STAMPING PRESSES,

APPLICMLUN HLEU nu. 6. 1915.

2 SHEETS-SHEET 2.

Mmmm/1&0:

Patnted Dec. :26, 19M.

UNITED STATES PATENT OFFTCE.

FRANK H. DAVIS. 0F BROOKLYN, NEW YORK.

FEEDER FOR STAMPING-PRESSES.

Application filed February G, 1915.

To all whom z't may concern:

Be it known that I, Faann H. Davis, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New Yorlqhave invented new and useful Improvements in Feeders for Stamping- Presses, of which the following is a speer,

tively fed forward and its extent of feed` motion 'regulated and controlled in a ready, convenient, and efficient manner.

A further object'of the invention is to provide a feeding niechanism which may be adjusted to shift the strip into and out of registry with the die.

A further object of the inventuin isl'o provide a feeding` mechanism of the'V character described which may be applied to any ordinary type ol. stamping press employing;` a die carrying heat embodying' means for heating the stampingr die.

The invention consists of certain novel features of construct-ion and arraagement. of parts which will be fully understood hy reference to the description of the drawings and to the claims hereinafter given.

0f the drawings; Figure 1 repiesents'a rear elevation of a device. embodying the principles of the present invention, said device being shown in connection with the essential parts of a stamping press, the remainder` of the press being' omitted. Fig. 2 represents a. vertical longitudinal section of the same. Fig. 3 represents a sectional plan view of the same. Fig. 4 reln'csents a detail section of the Saaie, the cuttingV plane being on line tif-4 of Fig. 3. Fig. 5 represents a detail section of' the same, the eat ting plane being on line -5 of Fig. Fig. 6 represents a detail sectlonof the same, the cutting plane being on line 6*i` of Fig'. Fig. 7 represents a detail section showing Specification of Letters Patent.

.Patented Dec. 2G, 1916.

Serial No. 6,647.

a modification in the. strip melone; aan...) of thc feeding mecl'ianism. Fig, represents a front` elevation, parlly in section, showingr a modiiied form of feeding" mechanism. Fie, S) represents a sectional view of theI same, showingr the feeding" mechanism in printingA or stamping position. and Fie'. 10 ri-prcscnts a similar view showing the feednre' mechanism adjusted to shift the ribbon slrip out of printingr position.

Similar characters designate, lilie parts throughout the several figures of the drawings.

.ln the drawings, l designates the yilui'iger ror removable die head of the ."sl'ai'npingA press, Q the die. il the tube or pipe for supplying eas or other fuel whereby the die. may be heated7 and 4 the platen upon which ma)r he placed an article 5 which is to be stamped or printed, in order that il' inayreceivc the impression from the die. In practice, the die. is heated and on its downward movement comes in contact with thc metallic ribhon strip or leaf (i, whereby portions of the metallic lni 7 carried by said strip are impressed against the article 5. i

The invention is particularly designed 'for supporting and feeding a metallic ribbon strip of the character' disclosed in .a prior Patent, No. 1,124,114. dated January 5, 1915, for metallic leaf` ribbon, and in another latent, No. Llittf),4 dated January 112, lill-. for art or method of gold healing surfaces. The ribbon disclosed in the beforeincntioncd patents consists of a carrier strip of a paper or other suitable materia-l in roll foral. to one surface of which is secured the gold or other metallic leaf. the outenfacc oiwhich is coated with a sizing' adapted to become tacky when subjected to thc 4-ressure of the characters upon the heated die. l" this means thc particles of gold bencatn nu characters on thcfdic :irc transferred fromand secured to such surface by pressure and the adhesive action of the size, theI workv la in.; burnished or glossed to the desired de- ,erc-e. i l

As illustrated the ribbon strip (i is preferably wound in roll forni upon a roll 8 which is journaled for rotation upon a bracket 9,

removably fastened to a bar 1l) by a set .screw vll or othersuitablc fastening means. The har Il) forms a cross ba r at one end of an oblong rectangular frame 12, which inclndes a. pair of longitudinal bars .t3 and that upon il connected at one end by the bar l0, while a 'cross bar lf connects the other ends ot the bars lll and l I. .l pair ot' intermediate cross bars lll and lll are also interposed between the bars lil and ll. 'The bars 13 and ld have depressed portions l?. iorming;r willi the bars lli and tti' a collar to embrace the head olI the die the bars 'lli and lli being provided with set .si-rows 1T'. whereby the feeder trame ma)Y be removabli clamped to the die .2.

The ribbon strip is adjusted ior use b v e.\- tending the l'reiI end of the strip longitudinally between and parallel with the longitudinal barsI lli. .l-i of the 'fi-anw, beneath theV cross liars 1t). 1i, ll') and iii' and directly under the die L and attaching the extremity oi such end oi' the strip to a feed drum or roller il). l4` or the purpose of accurately guiding the strip when in normal or stampin;T position. a notched gage or guide plate il] may be. provided upon the 'front cross bar 15, which plate is shown as provided with a transverse slot l1 through which extends a clamping' screw 22 engaging a thread open ing; in said cross bar 15, when-eb)v the gage may be adjusted laterally lo direct the line ot' feed of the ribbon as oreasion mair require in the use oi' dill'erent dies. rlflic gage is also rendered removable so that ribbons and gages ol'i diilerent widths ma). bc ein iloved.

'lhe 'l'eed roll or drinn '1.9 shown in the present instance is t'orined with bearing rc.- eesses 22 ai ils opposite. ends. whinh bearingl recesses are oi ronieal forni, (lne of' these bearing recesses receives a conical hearing member or buss ll upon a bracket extension '.35 irom the side liar li, whiie the other bearing` reress receives a conical bearing` member li upon the end of a screw '2T working in a threaded opening' in another bracket e.\'4

tension '2S at the lront end ot' the sido bar ll. whereby the bearing members may be rt-.laiireli adjusted lo take up wear or to permit oi the application and removal ol' the roll or drum lll. a cheek nut '2D being prorided lo serure'the screw 2T in adjusted position.

One end ol the. roll or drum lll carries a ratchet wheel 3() with which engages a spring actuated pawl or dog 3l ci fried b v a gear member l' loosely mounted on the drum. which gear meshes with rack teeth 33 upon the, forward end ot a t'ecd bar 3l, the said bar and pawl andratchet mechanism providing may be. intermittently ted forward to snccessivelv bring different portions A,of the ribbon eneath the tace of the die, as will be readily understood.

When the ribbon is arranged in operative position,

the iihn side 7 faces downward so the depression of the die it will be brought into contact with the work 5,

a moans whereby the ribbon strlpV Upon the the subsequent upward movement ot die die raising the strip from the work, allowing the latter to belremoved from the platen or lei't to remain tor subsequent treatment and the ribbon to be shifted forward to bring a new portion ot' the gold leat' in position beneath the die for the succeeding transfer. After the die is raised, the operator movesl the strip forward by shifting the rack bar 'forwardly by means ot' a lever or handle 35 attached thereto.. by whirhmovement the dog 31 will be swung l'orvi'ardli' and will engage a tooth oi the ratchet wheel and couple the gearl l'rl to the feed roll or drnnrlf)1 thereby causin; Y this feed motion to be transferred to said drum to shitttho ribbon a prescribed degree forwardly. 'l`he rack bar 353 0n its return motion will rotate the 'gear 32 with it. the piwl 3l, however, in this action sliding over the toot-h of the ratchet wheel which will retain the position to which it has been adliusted. A coiled siting Bis provided for retracting the rac: bar, said spring; being?r fixed at its lforward end to a suitable part of the ,traine with its rear end suitably connected to an adjustable collar or sleeve 3T. mounted on the rack bar and adapted to be. fastened in adjusted yposition b v means oifa set screw 3S, whereby the spring maybe set and tensioned as desired tor a proper working action. he rauh bar slides through guide members 39, and upon said 4bar is a stop collar 40 adjustable longitudinally and'providedA with a sel. screw 4l t'or securing it in adjusted positionosaid 'collar being adapted to abut against. the rear `guide. member 35) to liniit thev motion ot the rack bar toward the rear oithe .naehine, whereby,7 the rangc'of feed motion ot said bar nia be. varied to 'feed the strip to a greatexgor less extent forwardlv as oeeasi'on 1na \y demand. In the present yinstance l have also shown thehaiidie El?) provided with a sleeve which is slid ald;7 adjustable on the angular rack bar 35i and adapted to be lixed by a set screw 35', said handle being arranged to abut. against the rear gnideinember lfl to limit the forward motion of the rack bar. -It will thus be seen that when the article 5 which is to be embossed or stamped is disposed in place npon the platen .t,tlie die head'ior plunger may be moved downwardl Y so that die heated die will engage and iorce the strip against the surface of the article, byl which the size. will ,be fused alone thelines of impression and transfer localized por tions ot' the metallic film tothe worlgby which a combined stalknping` sizing, and polisliing` -or burnisbiug action is effected. die being then raised the strip may be fed forward b v the intermittentfeed mechanismto bring another portion of the strip beneath the die for the nextstamping action. The stop member l0 is so posi-- tioned that the portion of the strip (3 previously acted upon by the die 2 will be entirely ren'uiveifl from beneath the said die before the next don-nward movement thereoi. ThisI feedingr operation the strip coutinues after successive inun'essions until the strip is entirely uuivouud -from the core or roll 8 and trai'isferred to the roll or drum 19, from which latter it may be removed for the recovery of the remainder oi the gold adhering thereto. If the circumstames of the oase require a greater orles's degree ot' leed motionA ot the metallic ribbon leaf' 'after earch stamping' operation, this may be effect ed by adjusting the parts of the intermittent feed mechanism to vary the extent ot' lt'eed motion of the strip.

1n the strurture shown in Fig. T, the free end ol the ribbon leaf instead ol being wound directly upon the drum 19 (which is here shown as ribbed or corrugated) is dis posed to pass between said drum and a guide roll 15) driven by friction from the. drum 1i), the strip passing between said rolls ino any suitable receptacle in which it may be stored until it is desired to treat the same for the recovery of the remaining particles of the gold leaf therefrom.

In Figs. S to lll inclusive., I have shown a modified form oi vthe feeding mechanism which is structurally the same as that previously described, except that it is `made of materially greater width than the die h lad and its cross bars 1G and 1G slidably engage grooved guide members 42 secured to the die or head 2, so that the feeder frame may be shifted upon the die head in a direction transversely o' at right angles to the line oifeed ot' theribbon leaf'. The object of this eonstruetio and mode of mounting' is to provide for the shifting' of the. ribbon leatI into and out of the path of movement of the die, or to brine; different portions of the leaf beneath the type matter or working;r far-e of the die.'

li'hen the parts are arranged as shown in Fig.' il, the feeder is in printing or stamping posuion. with the ribbon leaf erre` iged directly beneath the die,` so that upon the de pression of the die a print or impression will be made through the leaf. Uy thus shitting the feeder laterally of the line of 'feed of the ribbon leaf, as illustrated in Fie'. ll), the ribbon may be moved out of register with the 'l'aee of the die, so that` as may happen in some cases or in doing some classes of work, if the stamped gold isnotburnished to the desired degree, the ribbon may be shifted lo allow the die to come directly into contact with the 'work for a burnishing acn tion. ln. this operation il. will, of course, be understood that the operator will first make an impression upon the \vorl\' through the ribbon strip. thus transferringl the lold leal, will then shift the ribbon out oi register with the die without disturbiiur the work, and will then bring the die down into en gaeement with tbn work. lu printing sin- ,L'le lines ol typemother matter ibis shil'tingr feeder is also of advantage in enabling different portions of the ribbon to be brought -nnder the diiI matter h v moving' the ribbon in a transverse direction to its line ot' feud, as will be readily understood. may be heldin adjusted positioirby frio tional engragenu-nt or other suitable fasteningnieans.

lt is believed that. the operation and many advantages of this invention will he fully understood from the 'toregroing desrription.

Having thusy desrrmed my invention, l claim l. In a device ot' the character described, the iamibinatiou of a support adapted to ho secured to the reciprmating die ot' a stamping' press; revolnhh` rolls mounted upon said support on o|')posite sides of said die, said rolls carrying' a ribbon movable bem-ath the face ot' said die; a stop member adjustable on said Irame to regulate the amount olT moven'ient of said ribbon; a manually controlled member supported by said frame and n'iovable relatively thereto, said niovenient being.: limited in one direction by said stop member; and means for rotationone of said rolls by the movement oi' said manually controlled member.

2. In a device oi" the character described, the combination of a frame; means disposed at or near the center of the frame for securiup,V the same to a plunger or die; rolls upon the. ends of the frame for the extension of the ribbon strip; a ratchet wheel associated with one of said rolls; a dog for actuating said ratchet wheel; a. pinion for actuating the dog; a longitudinally movable 4rack bar for actuating' the pinion; an adjustable stop deviro for requlnliiner and varying' the stroke of the rack bar; a retval-,ting spring,Y secured at one end to the.4 frame; and a slidably adjustable connection between the rack bar and the other cud of the spring,

Tn testimony whereof I alix my signature .in presence of two witnesses.

FRANK il. DAVIS.

Witnesses BnrmirrirA S. JONES.

The feeder lili 

